Eastman Chemical Co reported flaring after a relief valve failed in hydrocarbon-cracking plant 4 at its complex in Longview, Texas, according to a filing with state regulators. An upset in the plant’s debutanizer distillation column caused its relief valve to discharge to the flare, the company said in a filing with the Texas Commission on Environmental Quality, reported Bloomberg.. This relief valve did not fully reseat, so the release of process material to the flare is ongoing. Cold weather caused the valve failure, though production was not affected and no one was injured. The valve is expected to be replaced in a day according to the filing, and "the release of process material to the flare is ongoing.
04-Feb-11 
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